Thomas birch all



(No Model.)

Y T. BIROHALL.

SHUTTLE BOX MOTION FOR LOOMS.

No. 587,086. Patented July 27,1897.

WITNESSES: INVENTUR BY Qfmw ATTY'S.

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UNITED STATES PATENT v FFICE.

THOMAS BIROHALL, OF PATERSON, NEW JERSEY, ASSIGNOR TO ROBERT ATHERTON,OF SAME PLAOE.

SHUTTLE-BOX MOTION FOR LOOIVIS.'

SPECIFICATION forming part Of Letters Patent N0. 587,086, dated July2'7, 1897. Application filed February 9, 1897. Serial No. 622,679. (Nomodel-) To all whom it may concern.-

Be it known that I, THOMAS BIRCHALL, a citizen of the United States,residing in Paterson, county of Passaic, and State of New Jersey, haveinvented certain new and useful Improvements in Box-Looms; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

This invention relates to improvementsin looms,.and has reference tomechanism for operating the shuttle-boxes in looms especially adaptedand designedfor weaving pickand-pick fabrics.

The object of my invention is to secure a box-motion of simple, strong,and durable construction, reliable in operation, and not liable to getout of order.

The invention consists in the improved shuttle-boX-operating mechanismand in the combination and arrangement of the various parts thereof,substantially will be hereinafter more'fully described, and finallyembodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts in each of the several views,Figure l is a side elevation of a loomprovided with my improvedshuttle-box-operating mechanism; Fig. 2, a detail front elevation ofFig. 1, only those parts of the loom being shown which are necessary tofullyillustrate the nature of my said invention; Fig. 3, a sectionalView on the line 00 w of Fig. 1, and Fig. 4 an enlarged detail sideelevation of the shuttle-box-operating mechanism.

In said drawings,a represents a loom-frame; b, a lay-sword fulcrumed onthe shaft 0 and receiving its motion in the usual manner, and thereforenot illustrated in the drawings. The shuttle-boxes (two compartmentboxes) 0 are supported by the rods 0, guided in the tube 0 secured tothe bracket 0 which latter is fulcrumed by means of its sleeve 0 on thesaid shaft 0 all of well-known construc- To a block 0 arranged at ornear the lower end of the rod 0, is pivoted one end of arm d, the otherend of which is securely mounted on shaft d, extending across the 100mand connected with the shuttle-box rod on the other side of said loom inprecisely the same manner, as will be manifest. The shaft d has itsbearings in brackets a, projecting downward from the loom-frame a, asclearly shown. On the shaft d is also secured one end of the arm 61 theother end of which is adjustably and pivotally connected, through link dwith the forwardly-projecting end of a lever e, eccentrically mounted,as at e, on the shaft e havingits bearings in the bracket e and theprojection e of the auxiliary frame Q The rear end of lever e isprovided with an elongated slot a penetrated by the pin a", adj ustablyarranged in the elongated horizontal slot e of the auxiliary frame a Onthe shaft e is also secureda gear-wheel f, stripped of two teethdiametrically opposite, as atf and f and is adapted to be engaged andoperated by the toothed segmental sections 9 and g of the gear g whichlatter is in the same plane as the gear-wheel f and about twice itsdiameter, and is mounted on the picker-shaft h, receiving its motionthrough a train of gears on the opposite end of the loom, as in theusual manner, and therefore omitted from the drawings.

On the shaft 6 the outer end of which is provided with a hand-wheel, issecured a brake-wheel or disk 2, having its periphery flattened atopposite sides, as at i 1 adapted to be engaged by the flat brake-block2", arranged on and projecting from the horizontal rod i guided in thebracket 0. and controlled by a spiral spring 2' Said spiral springsurrounds the said rod and bears with one end against the outer portionof the bracket a and with its other end against a pin 2", secured to thesaid rod 5*, as clearly illustrated.

The relative position of the brake-wheel i and of. the gear-Wheel f issuch that the flatten ed portions t of said brake-wheel are in alinementwith the respective stripped portions f and f that is to say, when thegearwheel f is at rest one, the flattened portions t is in engagementwith the brake-block 'i.

In operation when the picker-shaft h is rotated one of the toothedsegmental sections 9 or g of the wheel g engages the teeth of thegear-wheelfand rotates the same one-half of one revolution, when theyget out of mesh on account of their stripped portions. As the shaft c isthus rotated the eccentric c" of the lever is operatedthat is to say,the forward end of the lever e is raiscd-and through its link (i and arm(1 operates the shaft (1, which latter in turn,through arms d,raises theboxes and their supporting-rods the required distance. After theshuttles have been thrown in the usual manner said boxes are againlowered. The othertoothed segmental portion 9 org engages the teeth onthe other half of the gear-wheel f, and thus rotates the same and alsothe shaft 6 causing the forward end of the lever e to be lowered. Thepin e,penetrating the elongated slot c in the rear portion of the lever6, serves as a fulcrum for said lever. It will be manifest that byadjusting said pin in the elongated slot 6 of the auxiliary frame a themovement of the lever e is easily regulated.

I do not intend to limit myself to the precise construction shown anddescribed, as various alterations can be made without changing the scopeof my invention; but

lVhat I claim as new, and desire to secure by Letters Patent, is

1. The combination with a revolving shaft and with theshuttle-box-supporting rods, of a gear-wheel on said shaft and providedwith two oppositely-arranged toothed segmental sections, a crank-shaftparallel with the revolving shaft, a mutilated gear-wheel securelymounted on said crank-shaft, and in the plane of the gear-wheel andadapted to be operated by its toothed segmental sections, a levereccentrically arranged on said crankshaft, a rocking shaft parallel withthe revolving shaft, a crank-arm securely mounted on said rocking shaft,a link adjustably connecting one end of said lever with the free end ofsaid crank-arm, and means connecting said rocking shaft with theshuttle-box-supporting rods, substantially as described.

2. The combination with a revolving shaft and with theshuttle-boxsupporting rods, of a gear-wheel on said shaft and providedwith two oppositely-arranged toothed segmental sections, a crank-shaftparallel with the revolving shaft, a mutilated gear -wheel securelymounted on said crank-shaft and in the plane of the gear-wheel andadapted to be operated by its toothed segmental sections, a levereccentrically arranged on said crankshaft, a rocking shaft. parallelwith the revolving shaft, a crank-arm securely mounted 011 said rockingshaft, a link adjustably conand with the shuttle-box-su pportin g rods,of

a gear-wheel on said shaft and provided with two oppositely-arrangedtoothed segmental sections, a crank-shaft parallel with the revolvingshaft, amutilated gearwheel securely mounted on said crank-shaft and inthe plane of the gear-wheel and adapted to be operated by said toothedsegmental sections, a lever eccentrically arranged on said crank-shaft,and provided at one end with an elongated slot, a stationary part, a pinadjustably arranged in said stationary part and penetrating saidelongated slot, means connecting the. other end of said lever with theshuttle-boX-supporting rods, a brake-wheel on the crank-shaft, and aspring-controlled brake-block controlling said brake-wheel,substantially as described.

4. The combination with a revolving shaft and with theshuttle-box-supporting rods, of a gear-wheel on said shaft and providedwith two oppositely-arranged toothed segmental sections, a crank-shaftparallel with the revolving shaft, a mutilated gear-wheel securelymounted on said crank-shaft and in the plane of the gear-wheel andadapted to be operated by said toothed segmental sections, a levereccentrically arranged 011 said crank-shaft, and provided at one endwith an elongated slot, a stationary part, a pin adj ustably arranged insaid stationary part and penetrating said elongated slot, a rockingshaft parallel with the revolving shaft, means connecting the other endof the lever with said rocking shaft to operate the same, and meansconnecting said rocking shaft with the shuttle-box-supporting rods,substantially as described.

5. The combination with a revolving shaft and with theshuttle-boX-supporting rods, of a gear-wheel on said shaft and providedwith two oppositely-arranged toothed segmental sections, a crank-shaftparallel with the revolving shaft, a mutilated gear-wheel securelymounted 011 said crank-shaft and in the plane of the gear-wheel andadapted to be operated bysaid toothed segmental sections, a levereccentrically arranged on said crank-shaft, and provided at one end withan elongated slot, a stationary part, a pin adjustably arranged in saidstationary part and penetrating said elongated slot, a rocking shaftparallel with the revolving shaft, means connecting the other end of thelever with said rocking shaft to operate the same, means connecting saidrocking shaft with the shuttle-boX-supportingrods, a brake-wheel on thecrankshaft, and a spring-controlled brakeblock for controlling saidbrake-wheel, substantially as described.

In testimony that I claimv the foregoing I have hereunto set my handthis 5th day of February, 1897.

THOMAS BIRCIIALL.

\Vitnesses:

ALFRED GARTNER, DUNCAN M. ROBERTSON.

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